BlackHawk® pre-seed herbicide enters the heat of the battle with fast, flexible and complete broadleaf weed control in cereals, soybeans and corn.

Technical Information

  • Active ingredients: Group 14 (pyraflufen-ethyl), Group 4 (2,4-D ester)
  • Rainfast: 1 hour
  • Treatment area: One case treats 40 acres at 445 mL/ac. (1.1 L/ha)
  • Tank-mix order: BlackHawk, glyphosate
  • Notes: For best results, use higher water volumes for good coverage and contact activity
  • PCP#: 32111

Registered Crops

  • Barley
  • Field corn
  • Oats
  • Rye
  • Soybeans
  • Wheat (spring, winter)

Weeds Controlled with a Glyphosate Tank-Mix

  • Burdock (prior to 4 leaf)
  • Canada fleabane (suppression) (including glyphosate-resistant)
  • Cocklebur
  • Common ragweed
  • Daisy fleabane
  • Dandelion
  • Giant ragweed (including glyphosate-resistant biotypes)
  • Lamb’s-quarters
  • Mallow
  • Mustards
  • Night-flowering catchfly
  • Pigweeds
  • Plantain
  • Prickly lettuce
  • Shepherd’s-purse
  • Sow thistle
  • Stinkweed
  • Wild buckwheat
  • Volunteer canola


  • THREE MODES OF ACTION when tank-mixed with glyphosate
  • FLEXIBILITY to apply up to one day post-planting in soybeans
  • STRONGER RESISTANCE MANAGEMENT with two active ingredients that control glyphosate-, Group 2- and triazine-resistant biotypes
  • FASTER CONTROL through systemic and contact activity for broad-spectrum weed control
  • WIDE SPECTRUM CONTROL of broadleaf weeds
  • Convenient all-in-one formulation
  • Tank-mixable with most pre-emergent herbicides
  • No surfactant required

Benefits Weed Control Challenge

Glyphosate alone used to provide an effective burndown option ahead of corn, cereals or soybeans. But the widespread adoption of herbicide-tolerant crops, and the alarming spread of glyphosate- and Group 2-resistant weeds including Canada fleabane, giant and common ragweed, and others, has dramatically reduced the effectiveness of glyphosate-only control programs.

Nufarm Solution

The all-in-one formulation of BlackHawk makes it easier for growers to spray when they need to – up to one day after planting soybeans. When tank-mixed with glyphosates like Credit Xtreme, BlackHawk delivers faster, more complete weed control in a pre-emergent burndown treatment than glyphosate alone, Group 2 and Group 14 only herbicides. With two active ingredients and two modes of action, BlackHawk doubles as an effective tool for resistance management.


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For specific crop usage information see label for details